Combination window sash



June 2, 1925.

F; O. ALLMAN COIIBINATION WINDOW SASH Filed. Feb. 1, 1922 flZTORIVEK' i Im/mo:

Paznte'd .inne 2, 1925.l

UNH'ED. s'rA'rs's PATENT orrics.

FRANK O. ALLIAN, OF ST. EAUL, MINNESOTA.

COM'BINATION WINDOW BASH.

Application led February 1, 1922. Serial No. 583,818.

My invention relates to combined stormv sash and screen sash for windows. The object of the invention is to enable storm sash and screens to be easily exchanged at the end of cold and Warm seasons and also to make said parts easy to repair when either the window glass or the wire netting of same may need repairs or replacing.

In the accompanying drawing,-

Fig. 1 is an elevation of the inner side of my device ready to be put into the regular recess for storm sash in a building (not shown). The upper sash is shown as holding a screen and the lower sash as holding a pane of glass, to avoid unnecessary drawing, but in actual use both upper and lower sash hold glass in the Winter season and screens' in the summer season and may be made of any suitable material.

Fig. 2 is an enlarged section on line 2-2 in Fig. 1. g

Fig. 3 is an enlarged section on line 3-3 in Fig. 1 with the top and bottom bars of the sash indicated as if made of Wood.

Fio'. 4 is an enlarged section on line 4-4 in Flg. 1 and indicating that most of the parts may be made of metal.

Fig. 5 is an enlargement of the lower portion of one of the screen holding sashes in my device regardless of material used; and the view shows means for stretching the inserted screen. i

Fig. 6 is an 'enlarged portion of the upper sash and the handle on same. i

Fig. 7 is a section on line 7-7 in Fig. 6 with the sash shown hollow as when made of sheet metal, although. it may also be of wood.

Referring to the drawing by reference numerals, 10 designates a wooden sash as large as the entire window opening in the building. As this sash is to be secured ermanently in place in the recess in thewin ow frame (not shown) usually provided for storm sash, I will call it the fixed sash.

Normally fitted to slide vertically in the fixed sash are two removable sashes 11 having Wire netting 13, or two sashes 12 havin glass 14. In the drawing one of each of sai sashes is shown as suflicient for explanation and the other 'two being duplicates of those shown are omitted.

Each sash 11 and 12 is preferably made of Sheet metal and formed With overlapping hook-shaped 'flanges 15-16 (see Fig.

2) forming a tight joint when both sashes are closed. Each slidable sash is also formed with opposite grooves 17 adapted to slidably receive Vertical metal ribs 18-19 in vthe fixed sash 10. .Each sliding upper sash also hasv an end groove 20 fitting over a horlzontaltop rib 21, and each lower sash has a similar groove 22 (see Fig. 2) for a botltom rib 23. In all of said grooves may be disposed inlaid strips like 24' of soft material to make air tight joints.

Each movable sash has a handle 25 to take hold of in moving the sash and a slidable.

catch 26 adapted to enage in notches 27 in the guiding ribs 18 an 19; each catch having a finger operated button 28.

In the upper sash there is a channel 29 for the button'28 to slide in so as to not obstruct the rising movement of the lower sash; for the same urpose the 'upper handle- 25 is also place in a cavity 25' in the sash andV is pivotally held at its ends 25'* so it ma be swung out of the cavity while in -acgm usfe. h h ding bs neo eac sas gui ri say 19 extends all the way up and own in the fixed sash, while the other or opposite rib 18 extends only about half way up for the sash 12 and half wa down for the sash 11, so that b moving t e lower sash fully upward one e e of it may be pushed out of the fixed sai and the other edge then pulled awa from its long guiding rib, and the top sas may likewise be removed from its extreme bottom position. It is in this manner. that two screen sashes may readily be removed and two glazed sashes substituted therefor, and in the spring the storm sashes are replaced by screen sashes.

.To describe the slidable sashes more' in detail, it will be seen in Fig. 4 that in my preferred form 'each sash 11 and 12 is made of Sheet metal in such a Way that 'its rails or bars are hollow inside and formed with outward-guiding grooves 17 for the guiding ribs and inward rooves 17 for either glass or Wire screen. Vhen'the sash is glazed I em loy soft packing strips like 24' in Figs. 1 7 to ma e a. dgraft-tigl t joint about the edges of the glass. Eac sash has its top 12 the strip' 30 which is-removably secuped by' a i scl'ew 31 (shown in Fig 2). This makes screen has each of 'its clamed in a sheet [meta-l ehanne -a similar bar 34 between the upper en of saidstrips. Such bar 33 or 34 is first placed itstopsinagroove35in rail formed a slot 35", down through .which the glass, or the screen is ushed until the tom rail. This will in the outer or top 11 in Figs. 2`and 3 leave a groove 20 to receive the fixed rib 21 of thelintel 10, and inthe lower sash top slot 35* is closed or filled by a either glass 'or screen readily removable for repair or exchange. In fthe sash holding the vscreen 13, the Vertical edges firmly v strip ,32 ig; 4) while the top and bottom' edge may be simply the raw edges of the net as woven. After the channel strips 32 are pushed into the inward grooves of the the netting is stretched in 'horizontal direction by forcing a light flat bar'33 between the lower ends 'of the channel strips '32 and at an incline, asshown in Fi forced into horizontal 'position at one side of the screen' wre, one bar into the'lower groove'35 (see Fig. 3) 'and the other up-,

wardly into the slot 35xx down through which e lscreen is inserted before being stretched.

What I claim is:

A window sash havin in its top rail a vslittand in its Vertical sti es inward groovcs lnetting and 'ng thevends of the channel bars to hold tiem with the wire netting stretched, said cross bars being received into the sash at one side of the netting.

` In testimony whereof I aflix m si ature. w

- FRANK O. A L AN.

g. 5, and is then 

